Open Sports Health, click My Tab in the lower right corner, Settings, Privacy, find the option of synchronizing health data to the cloud, and set it to on.
How to create encrypted backups for iOS devices using iTunes:
1. Connect the device to the computer.
2. Open iTunes and click the device icon.
3. Click Summary to find the backup.
4. Select "Encrypt iPhone Backup" and create a password.
5. Back up immediately.